We went to 4805 lb. rated 17.5" Michelin XTAs with correspondingly-rated aluminum wheels, center caps and lugs from Trailer Tires and Wheels.com to replace the OEM 3705 lb. rated Goodyear G614 RSTs after 2 catastrophic tread separation failures of the G614s. The tires are 1/2" shorter in diameter (30.3" versus 30.8"), narrower and the wheels have the correct zero offset, so it's an easy bolt-up.

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